:root {
  --bg: #eef2f7;
  --bg-accent: #dde3ec;
  --card-bg: #ffffff;
  --card-border: rgba(15, 23, 42, 0.08);
  --text: #1f2933;
  --muted: #5f6b7a;
  --accent: #2563eb;
  --accent-soft: rgba(37, 99, 235, 0.1);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 10px;
  --max-width: 920px;
  font-family: "Space Grotesk", "PingFang SC", "Noto Sans SC", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.7), transparent 55%),
    radial-gradient(circle at 80% 0%, rgba(37, 99, 235, 0.08), transparent 60%),
    var(--bg);
  color: var(--text);
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: var(--accent);
}

.page {
  width: min(100%, var(--max-width));
  margin: 0 auto;
  padding: 72px 24px 120px;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 48px;
  font-size: 0.95rem;
  color: var(--muted);
}

.nav-brand {
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 20px;
}

.card {
  padding: 40px;
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--card-border);
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.08);
}

.hero {
  margin-bottom: 48px;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 12px 0 10px;
}

.hero p {
  color: var(--muted);
  line-height: 1.7;
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
}

.section-title {
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.section-text {
  color: var(--muted);
  line-height: 1.75;
}

.details-grid {
  display: grid;
  gap: 16px;
}

.detail-item {
  padding: 22px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(15, 23, 42, 0.04);
  background: rgba(15, 23, 42, 0.015);
}

.detail-item h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.detail-item p,
.detail-item ul {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.detail-item ul {
  padding-left: 18px;
}

.table {
  width: 100%;
  border-spacing: 0;
}

.table thead {
  font-size: 0.85rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.table th,
.table td {
  padding: 16px 12px;
  text-align: left;
  font-size: 0.95rem;
}

.table tr:not(:last-child) td {
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.callout {
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(37, 99, 235, 0.15);
  background: linear-gradient(145deg, rgba(37, 99, 235, 0.08), rgba(255, 255, 255, 0.9));
}

.callout strong {
  font-size: 1.1rem;
}

.footer {
  margin-top: 72px;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.95rem;
  color: var(--muted);
  margin-bottom: 24px;
}

.policy-card {
  padding: 48px;
  border-radius: 36px;
  box-shadow: 0 30px 80px rgba(15, 23, 42, 0.12);
}

.policy-label {
  text-transform: uppercase;
  letter-spacing: 0.32em;
  color: var(--muted);
  font-size: 0.78rem;
  margin-bottom: 16px;
}

.policy-updated {
  color: var(--muted);
  margin-top: 8px;
  font-size: 0.95rem;
}

.policy-content {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.policy-block h2 {
  margin: 0 0 12px;
  font-size: 1.15rem;
}

.policy-block p,
.policy-block ul {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.policy-block ul {
  padding-left: 18px;
}

.policy-divider {
  height: 1px;
  background: rgba(15, 23, 42, 0.06);
}

.contact-link {
  color: var(--accent);
}

.app-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.app-item {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 20px;
  border-radius: var(--radius-md);
  background: rgba(15, 23, 42, 0.03);
  border: 1px solid rgba(15, 23, 42, 0.04);
}

.app-item p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.app-item a {
  color: var(--accent);
  font-weight: 500;
  font-size: 0.95rem;
}

@media (max-width: 640px) {
  .page {
    padding: 48px 18px 80px;
  }

  nav {
    flex-direction: column;
    gap: 14px;
  }

  .card {
    padding: 28px;
  }

  .policy-card {
    padding: 32px;
    border-radius: 28px;
  }
}